FIELD: physics.
SUBSTANCE: proposed method of forming an interface between first and second essentially immiscible liquids comprises five steps. At the first step a volume of the first liquid is added to the first or lower cavity made in a body which has a horizontal surface. The cavity has a closed bottom section and a wall section or sections passing from the bottom section and forming the opening of the cavity. At the second step a volume of the second liquid is added to the second or upper cavity which has a wall section or sections passing from the upper opening of the cavity to the lower cavity. The said lower opening in the first position is made with possibility of sealing the said horizontal surface. At the third step the sealed upper cavity and the said surface are moved relative each other so as to level the lower opening of the upper cavity with the upper opening of the lower cavity for depositing the second liquid over the first liquid and formation of an interface between the first and second liquids. At the fourth step a probe is put into the interface between the first and second immiscible liquids. At the fifth step surface tension at the interface is measured.
EFFECT: increased sensitivity, provision for accuracy and fast measurement of surface tension at the interface between first and second essentially immiscible liquids.
38 cl, 2 dwg
